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"""Output a note to the user.
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Takes the same parameters as logging.info.
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# FIXME note always emits utf-8, regardless of the terminal encoding
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# FIXME: clearing the ui and then going through the abstract logging
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# framework is whack; we should probably have a logging Handler that
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117
# deals with terminal output if needed.
125
bzrlib.ui.ui_factory.clear_term()
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ui.ui_factory.clear_term()
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119
_bzr_logger.info(*args, **kwargs)
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122
def warning(*args, **kwargs):
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bzrlib.ui.ui_factory.clear_term()
123
ui.ui_factory.clear_term()
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_bzr_logger.warning(*args, **kwargs)
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@deprecated_function(deprecated_in((2, 1, 0)))
136
def info(*args, **kwargs):
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"""Deprecated: use trace.note instead."""
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note(*args, **kwargs)
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@deprecated_function(deprecated_in((2, 1, 0)))
142
def log_error(*args, **kwargs):
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"""Deprecated: use bzrlib.trace.show_error instead"""
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_bzr_logger.error(*args, **kwargs)
147
@deprecated_function(deprecated_in((2, 1, 0)))
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def error(*args, **kwargs):
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"""Deprecated: use bzrlib.trace.show_error instead"""
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_bzr_logger.error(*args, **kwargs)
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127
def show_error(*args, **kwargs):
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128
"""Show an error message to the user.
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196
def _get_bzr_log_filename():
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bzr_log = os.environ.get('BZR_LOG')
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bzr_log = osutils.path_from_environ('BZR_LOG')
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home = os.environ.get('BZR_HOME')
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home = osutils.path_from_environ('BZR_HOME')
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if sys.platform == 'win32':
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from bzrlib import win32utils
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home = win32utils.get_home_location()
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home = os.path.expanduser('~')
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# GZ 2012-02-01: Logging to the home dir is bad, but XDG is unclear
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# over what would be better. On windows, bug 240550
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# suggests LOCALAPPDATA be used instead.
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home = osutils._get_home_dir()
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return os.path.join(home, '.bzr.log')
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logging.getLogger("bzr").
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Output can be redirected away by calling _push_log_file.
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:return: A memento from push_log_file for restoring the log state.
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# Do this before we open the log file, so we prevent
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# get_terminal_encoding() from mutter()ing multiple times
311
term_encoding = osutils.get_terminal_encoding()
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start_time = osutils.format_local_date(_bzr_log_start_time,
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285
timezone='local')
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# create encoded wrapper around stderr
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bzr_log_file = _open_bzr_log()
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if bzr_log_file is not None:
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bzr_log_file.write(start_time.encode('utf-8') + '\n')
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push_log_file(bzr_log_file,
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memento = push_log_file(bzr_log_file,
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r'[%(process)5d] %(asctime)s.%(msecs)03d %(levelname)s: %(message)s',
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r'%Y-%m-%d %H:%M:%S')
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# after hooking output into bzr_log, we also need to attach a stderr
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# handler, writing only at level info and with encoding
323
writer_factory = codecs.getwriter(term_encoding)
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encoded_stderr = writer_factory(sys.stderr, errors='replace')
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stderr_handler = logging.StreamHandler(encoded_stderr)
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stderr_handler.setLevel(logging.INFO)
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stderr_handler = EncodedStreamHandler(sys.stderr,
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osutils.get_terminal_encoding(), 'replace', level=logging.INFO)
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logging.getLogger('bzr').addHandler(stderr_handler)
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def push_log_file(to_file, log_format=None, date_format=None):
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:param to_file: A file-like object to which messages will be sent.
335
305
:returns: A memento that should be passed to _pop_log_file to restore the
336
previously active logging.
306
previously active logging.
338
308
global _trace_file
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# make a new handler
340
new_handler = logging.StreamHandler(to_file)
341
new_handler.setLevel(logging.DEBUG)
310
new_handler = EncodedStreamHandler(to_file, "utf-8", level=logging.DEBUG)
342
311
if log_format is None:
343
312
log_format = '%(levelname)8s %(message)s'
344
313
new_handler.setFormatter(logging.Formatter(log_format, date_format))
366
335
def pop_log_file((magic, old_handlers, new_handler, old_trace_file, new_trace_file)):
367
336
"""Undo changes to logging/tracing done by _push_log_file.
369
This flushes, but does not close the trace file.
338
This flushes, but does not close the trace file (so that anything that was
371
341
Takes the memento returned from _push_log_file."""
372
342
global _trace_file
373
343
_trace_file = old_trace_file
374
344
bzr_logger = logging.getLogger('bzr')
375
345
bzr_logger.removeHandler(new_handler)
376
# must be closed, otherwise logging will try to close it atexit, and the
346
# must be closed, otherwise logging will try to close it at exit, and the
377
347
# file will likely already be closed underneath.
378
348
new_handler.close()
379
349
bzr_logger.handlers = old_handlers
380
new_trace_file.flush()
350
if new_trace_file is not None:
351
new_trace_file.flush()
383
354
def log_exception_quietly():
439
def _dump_memory_usage(err_file):
442
fd, name = tempfile.mkstemp(prefix="bzr_memdump", suffix=".json")
443
dump_file = os.fdopen(fd, 'w')
444
from meliae import scanner
445
scanner.dump_gc_objects(dump_file)
446
err_file.write("Memory dumped to %s\n" % name)
448
err_file.write("Dumping memory requires meliae module.\n")
449
log_exception_quietly()
451
err_file.write("Exception while dumping memory.\n")
452
log_exception_quietly()
454
if dump_file is not None:
460
def _qualified_exception_name(eclass, unqualified_bzrlib_errors=False):
461
"""Give name of error class including module for non-builtin exceptions
463
If `unqualified_bzrlib_errors` is True, errors specific to bzrlib will
464
also omit the module prefix.
466
class_name = eclass.__name__
467
module_name = eclass.__module__
468
if module_name in ("exceptions", "__main__") or (
469
unqualified_bzrlib_errors and module_name == "bzrlib.errors"):
471
return "%s.%s" % (module_name, class_name)
469
474
def report_exception(exc_info, err_file):
470
475
"""Report an exception to err_file (typically stderr) and to .bzr.log.
479
484
print_exception(exc_info, err_file)
480
485
return errors.EXIT_ERROR
481
486
exc_type, exc_object, exc_tb = exc_info
482
if (isinstance(exc_object, IOError)
483
and getattr(exc_object, 'errno', None) == errno.EPIPE):
484
err_file.write("bzr: broken pipe\n")
485
return errors.EXIT_ERROR
486
elif isinstance(exc_object, KeyboardInterrupt):
487
if isinstance(exc_object, KeyboardInterrupt):
487
488
err_file.write("bzr: interrupted\n")
488
489
return errors.EXIT_ERROR
489
490
elif isinstance(exc_object, MemoryError):
490
491
err_file.write("bzr: out of memory\n")
492
if 'mem_dump' in debug.debug_flags:
493
_dump_memory_usage(err_file)
495
err_file.write("Use -Dmem_dump to dump memory to a file.\n")
491
496
return errors.EXIT_ERROR
492
497
elif isinstance(exc_object, ImportError) \
493
498
and str(exc_object).startswith("No module named "):
497
502
elif not getattr(exc_object, 'internal_error', True):
498
503
report_user_error(exc_info, err_file)
499
504
return errors.EXIT_ERROR
500
elif isinstance(exc_object, (OSError, IOError)):
505
elif osutils.is_environment_error(exc_object):
506
if getattr(exc_object, 'errno', None) == errno.EPIPE:
507
err_file.write("bzr: broken pipe\n")
508
return errors.EXIT_ERROR
501
509
# Might be nice to catch all of these and show them as something more
502
510
# specific, but there are too many cases at the moment.
503
511
report_user_error(exc_info, err_file)
552
564
def _flush_trace():
553
# run from atexit hook
565
# called from the bzrlib library finalizer returned by bzrlib.initialize()
554
566
global _trace_file
556
568
_trace_file.flush()
571
class EncodedStreamHandler(logging.Handler):
572
"""Robustly write logging events to a stream using the specified encoding
574
Messages are expected to be formatted to unicode, but UTF-8 byte strings
575
are also accepted. An error during formatting or a str message in another
576
encoding will be quitely noted as an error in the Bazaar log file.
578
The stream is not closed so sys.stdout or sys.stderr may be passed.
581
def __init__(self, stream, encoding=None, errors='strict', level=0):
582
logging.Handler.__init__(self, level)
585
encoding = getattr(stream, "encoding", "ascii")
586
self.encoding = encoding
590
flush = getattr(self.stream, "flush", None)
591
if flush is not None:
594
def emit(self, record):
596
line = self.format(record)
597
if not isinstance(line, unicode):
598
line = line.decode("utf-8")
599
self.stream.write(line.encode(self.encoding, self.errors) + "\n")
601
log_exception_quietly()
602
# Try saving the details that would have been logged in some form
603
msg = args = "<Unformattable>"
605
msg = repr(record.msg).encode("ascii")
606
args = repr(record.args).encode("ascii")
609
# Using mutter() bypasses the logging module and writes directly
610
# to the file so there's no danger of getting into a loop here.
611
mutter("Logging record unformattable: %s %% %s", msg, args)
614
class Config(object):
615
"""Configuration of message tracing in bzrlib.
617
This implements the context manager protocol and should manage any global
618
variables still used. The default config used is DefaultConfig, but
619
embedded uses of bzrlib may wish to use a custom manager.
623
return self # This is bound to the 'as' clause in a with statement.
625
def __exit__(self, exc_type, exc_val, exc_tb):
626
return False # propogate exceptions.
629
class DefaultConfig(Config):
630
"""A default configuration for tracing of messages in bzrlib.
632
This implements the context manager protocol.
636
self._original_filename = _bzr_log_filename
637
self._original_state = enable_default_logging()
638
return self # This is bound to the 'as' clause in a with statement.
640
def __exit__(self, exc_type, exc_val, exc_tb):
641
pop_log_file(self._original_state)
642
global _bzr_log_filename
643
_bzr_log_filename = self._original_filename
644
return False # propogate exceptions.